Base for a drinking mug



FIG. 1 is an isometric view of a base for a drinking mug showing my newdesign;

FIG. 2 is a side view thereof, all sides being identical;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a top view thereof.

The broken lines are for illustrative purposes only and form no part ofthe claimed design.

The ornamental design for a base for a drinking mug, as shown anddescribed.